<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 浏览器针对js请求js 图片等是不跨域的 -->
    <!-- 这个不能放请求下面 -->
    <script>
        function getData(data) {
            console.log(data);
        }
    </script>
    <script src="http://localhost:3000/api/data?id=getData"></script>

</body>

</html>